using clerk with self-hosting gives incorrect dashboard link from CLI

[nipunn1313]

The npx convex dev command on the CLI gives a link to this incorrect dashboard page with null as the deployment name when working with self-hosting.

Can repro by setting up convex self-hosting and setting up clerk.
Ideally the dashboard link here should link to the localhost:6791 self-hosted dashboard.

npx convex dev
Saved the given --url as CONVEX_URL to .env.local
✖ Environment variable CLERK_JWT_ISSUER_DOMAIN is used in auth config file but its value was not set. Go to:

    https://dashboard.convex.dev/d/null/settings/environment-variables?var=CLERK_JWT_ISSUER_DOMAIN

  to set it up.